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Finishing Simple: Installing a Toilet

In a previous feature, we illustrated the simplicity of removing your existing toilet from the bathroom. This follow-up details the ease with which you can install a new toilet, arming you with the confidence to go forth and start additional D.I.Y. projects in and around your home. Though you should always refer to the manufacturer’s instructions for the toilet model you purchase, this quick and dirty guide will get the job done. Installing a new toilet is similar to the toilet removal process; it should be done in pieces.

Step 1: Set the bowl. Insert closet bolts into the flange placing them parallel to the wall behind the toilet.

Step 2: Turn the bowl over on the floor but place a blanket or towel underneath to prevent damage. Install the wax ring on the waste horn—the protrusion on the base of the toilet that extends into the flange, where you just placed the bolts. Allow the wax ring to warm slightly so that it is softer and easier to work with.

Step 3: Unplug the waste drain hole and position the toilet directly above the flange. Install the retainer washers and nuts, and ensure the tapered washers are installed with the correct side up. These will be labeled in the manufacturer’s instructions.

Step 4: Use a rocking motion to gently press down the wax ring into the flange. When the bowl is in place, tighten the nuts on the closest bolts. Be sure to alternate from side to side in order to more evenly distribute the pressure.

Step 5: Install the bolt caps on the closest bolts.

Step 6: Check for leaks, then seal the base of the toilet with sealant.

Step 7: Use the manufacturer’s instructions to install the large rubber gasket over the outlet on the bottom of the tank. Then, insert the tank mounting bolts and rubber washers from inside the tank, pushing them through and mounting area of the bowl.

Step 8: Place the tank in position and alternately tighten the nuts to ensure even pressure. Install the seat per the manufacturer’s instructions.

Step 9: Install the water supply line. Do not crimp the line, as it will obstruct the flow of water and weaken, causing potential for leaks or breakage.